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http://dx.doi.org/10.15683/kosdi.2020.12.31.806

Seismic Fragility Analysis of Curved Bridge under High Frequency Earthquakes  

Jeon, Juntai (Department of Civil & Environmental Engineering, Inha Technical Coleage)
Ju, Bu-Seog (Department of Civil Engineering, Kyunghee University)
Son, Hoyoung (Department of Civil Engineering, Kyunghee University)
Publication Information
Journal of the Society of Disaster Information / v.16, no.4, 2020 , pp. 806-812 More about this Journal
Abstract
Purpose: This is aimed to evaluate the seismic fragility of curved bridge structure with I-shape girder subjected to 12 high frequency ground motions based on Gyeongju earthquake. Method: The linear elastic finite element model of curved bridge with I-Shape cross section was constructed and them linear elastic time history analyses were performed using the 12 artificial ground motions. Result: It was found that displacement response(LS1, LS2) was failed after PGA 0.1g and the stress response also showed failure after PGA 0.2g. Conclusion: The curved bridge with I-shape girder was sensitive to high frequency earthquakes.
Keywords
High Frequency Earthquakes; Curved Bridge; Seismic Fragility; Section Shape; Finite Element Model;
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